JP2558026B2 - Lock structure for small terminal equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock structure for a small terminal device such as a portable radio. Generally, a portable small terminal device includes a battery pack as a power source. The battery pack can be attached to and detached from the main body of the device for charging or replacement, and the attachment and detachment is frequently performed, so that the battery pack can be easily operated.

On the other hand, this type of small terminal device needs to be small and lightweight because it is portable, and it is preferable that it is inexpensive in terms of widespread use. The present invention has a lock structure for attaching / detaching to / from a device body such as a battery pack in view of downsizing, weight reduction, and cost reduction.

[0003]

5 to 7 are explanatory views of a conventional lock structure, FIG. 5 is a sectional view of an essential part, FIG. 6 is an exploded perspective view of the essential part,
FIG. 7 is an external perspective view.

In FIG. 7, reference numeral 21 is a main body of a portable small terminal device, and 22 is a battery pack as a power source of the device main body 1. The battery pack 22 is the device main body 21.
Is formed so as to interpolate a part thereof.

Engaging portions that are opposed to each other are formed on the joint surface (upper surface) 21a of the device body 21 and the joint surface (lower surface) 22a of the battery pack 22, and the battery pack 22 is previously attached to the device body 21. The joint surfaces 21a and 22a are aligned in a shifted state, and then the lock portion 22b at the end opposite to the side where the terminals 23 of the battery pack 22 are formed abuts on the lock portion 21b of the device body 21. When the battery pack 22 is slid, the opposing engaging portions of the device body 21 and the battery pack 22 are engaged, and the battery pack 22 is locked to the device body 21 by the lock structure shown in FIGS. 5 and 6. It is installed.

5 and 6, the lock portion 21b of the device body 21 is provided with a mounting portion 24 having a plurality of screw bushes 24a, and a through hole 25 is formed in the vicinity thereof, and is locked by a holding metal fitting 26. The claw 27 and the lock button 28 are held and fixed to the mounting portion 24 by the screw 29 while being held.

The lock claw 27 has a pin 27a,
The lock button 28 has a triangular through hole 28a, and the pin 27a is inserted into the through hole 28a. The lock claw 27 is urged by a coil spring 32 held by the press fitting 26 by a guide pin 30 and a screw 31, and the lock button 28 is pushed upward by pressing the pin 27a against the hypotenuse of the through hole 28a. A part of the lock button 28 penetrates the through hole 25 and slightly protrudes.

On the other hand, the battery pack 22 is formed with a claw engaging portion that engages with the tip of the lock claw 27, and when the battery pack 22 is mounted, this claw engaging portion is formed.
The battery pack 22 is locked to the device body 21 by sliding the 7 slightly against the biasing force of the coil spring 32 and then restoring the lock 7 and engaging the tip of the lock claw 27 with the claw engaging portion.

When the lock button 28 is pushed down when the battery pack 22 is removed, the lock claw 27 is inserted through the pin 27a by the oblique side of the through hole 28a of the lock button 28.
Is slid against the urging force of the coil spring 32 to release the engagement, and in this state, the battery pack 22 is slid in the direction opposite to the mounting direction.

[0010]

However, according to the conventional lock structure, as is apparent from FIGS. 5 and 6, the number of parts is very large, the number of work steps for assembling is large, and the cost is high. However, there is a problem in that there is an obstacle in reducing the size and weight.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a lock structure for a small terminal device, which can achieve cost reduction, size reduction, and weight reduction. Is.

[0012]

In order to solve the above problems, the following structure is provided. In a lock structure for a small terminal device, wherein an interpolating member having a shape that interpolates a part of the device body is releasably locked to the device body, in a locking plate portion protruding toward one end side of a substantially flat plate-shaped member, The push button portion includes a lock member integrally formed with an urging portion elastically deformed in the protruding direction of the lock claw portion on the other end side, the urging portion being in contact with the device body, and It is provided in the main body of the device so as to slide slightly in the protruding direction of the lock claw portion.

When the interpolating member is mounted, the interpolating member is provided with a pawl engaging portion formed so as to be pushed back and then restored to engage with the lock pawl portion. By depressing the push button portion, the lock claw portion is disengaged from the claw engaging portion, and the interpolation member can be detached from the device body.

[0014]

According to the lock structure of the present invention, the lock member is formed by integrally forming the lock claw portion, the push button portion, and the biasing portion, and the lock member is slidably attached to the apparatus body. The number of parts is significantly reduced as compared with the conventional structure.

The lock member has a simple shape and can be easily formed by resin molding, for example. Furthermore, the assembly is extremely simplified, and even if the entire structure is made small, it does not hinder the assembly,
It greatly contributes to downsizing and weight saving of terminal equipment.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view showing the structure of the main part of an embodiment of the present invention, and FIG. 2 is a perspective view showing the same external appearance.

In FIG. 2, reference numeral 1 is a main body of a portable small radio device, and 2 is a battery pack (interpolation member) as a power source of the device main body 1. The battery pack 2 is formed in a shape that interpolates a part of the device body 1.

The joining surface (upper surface) 1a of the equipment body 1 and the joining surface (lower surface) 2a of the battery pack 2 are formed with engaging portions made of grooves or the like which face each other, and the battery body is connected to the equipment body 1 by a battery. The joint surfaces 1a and 2a are brought into face-to-face contact with each other in a state where the pack 2 is displaced in advance, and then the lock portion 2 at the end opposite to the side where the terminal 3 of the battery pack 2 is arranged.
The battery pack 2 is slid so that the battery pack 2 comes into contact with the lock portion 1b of the device body 1. The opposite engaging portions are engaged, and the lock structure shown in FIG. It is locked and attached to.

In FIG. 1, the lock portion 1b of the device body 1
A pair of rail grooves 4 and 4 are formed on the rails, and a substantially U-shaped guide member 5 is integrally formed. A through hole 6 is formed below the central portion of the guide member 5.

Reference numeral 7 denotes a lock member. The lock member 7 has lock tabs 8, 8 projecting upward in the vicinity of both sides of an upper end portion of a substantially flat plate-like member, and a push button portion 9 formed at the center thereof. At the same time, the lower end is formed with a biasing portion 10 formed from one end side toward the other end side. In addition, a pair of guide rail portions 11 which are slidably inserted into the rail grooves 4 and 4 are formed on the back surface of the lock member 7, and the guide rail portion 11 is formed in the through hole 6 of the guide member 5 at the center portion on the front surface. Sliding stroke regulating projection 12 that is fitted and arranged
Are formed.

The tips of the lock claw portions 8 and 8 are formed obliquely, and the biasing portion 10 is formed so as to become thinner toward the tips. The lock member 7 is formed by resin molding so that each part is integrally formed.
As the material, for example, polyacetal resin can be used.

The lock member 7 is the device body 1
It is assembled by inserting the urging portion 10 downward between the guide member 5 and the guide member 5. Protrusion 1 of lock member 7
The lower side of 2 is formed obliquely so that it does not hinder the insertion of the lock member 7.

Further, in the lock member 7, the upper side of the projection 12 abuts on the upper side of the through hole 6 of the guide member 5 so that the biasing portion 10 abuts on the upper surface 1a of the device body 1 so as not to come out. Has become. As a result, the lock member 7 is slightly slidably restored by pressing the push button portion 9.

On the other hand, in the vicinity of the lock portion 2b of the battery pack 2, convex or concave claw engaging portions 13 and 1 are provided at positions corresponding to the lock claw portions 8 and 8 of the lock member 7, respectively.
3 is formed, and the battery pack 2 is slid / pressurized to the side where the lock portion 2b abuts the lock portion 1b of the device body 1, so that the lock member 7 is restored after being slid slightly downward. The tip ends of the lock claw portions 8 and 8 are engaged with the claw engagement portions 13 and 13, and the battery pack 2 is locked to the device body 1.

When removing the battery pack 2, the push button portion 9 of the lock member 7 is pushed and the lock member 7 is slid against the biasing force of the biasing portion 10, whereby the lock claw portions 8, 8 are provided. The engagement between the claw engaging portions 13 and 13 is released, and in this state, the battery pack 2 is slid in the direction opposite to the mounting direction.

FIG. 3 is another embodiment of the present invention and is a perspective view showing another structure of the lock member. The biasing portion 10 of the lock member 7 in FIG. 1 is formed from one end side toward the other end side, but in this example, a pair of biasing portions are formed outward from the center portion thereof. Is configured. The stability of the lock member 7 when the push button portion 9 is pushed down can be improved.

The lock structure proposed by the present inventors in the process of making the present invention is shown in FIG. The same numbers are given to the substantially same components as in FIG. That is, the spring mounting portion 15 is formed without integrally forming the biasing portion on the lock member 7, and the coil spring 16 is mounted on the mounting portion 15.

Although functionally the same as the above-mentioned embodiment, the structure of the above-mentioned embodiment has a smaller number of parts, and is superior in terms of reduction in the number of assembling steps, cost reduction, weight reduction, and size reduction. Understand that

[0029]

Since the present invention is configured as described above in detail, it is possible to reduce the number of manufacturing steps of a small terminal device, reduce the cost, reduce the size, and reduce the weight.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of a main part of an embodiment of the present invention.

FIG. 2 is an external perspective view of an embodiment of the present invention.

FIG. 3 is a perspective view showing another configuration of the lock member according to another embodiment of the present invention.

FIG. 4 is a perspective view showing a structure on which the present invention is based.

FIG. 5 is a cross-sectional view showing a configuration of a conventional technique.

FIG. 6 is an exploded perspective view showing a configuration of a conventional technique.

FIG. 7 is an external perspective view of a conventional technique.

[Explanation of symbols]

 1 Device Main Body 2 Battery Pack (Interpolation Member) 4 Rail Groove 5 Guide Member 6 Through Hole 7 Lock Member 8 Lock Claw 9 Push Button 10 Biasing 11 Guide Rail 12 Protrusion 13 Claw Engagement

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Minoru Suzuki 1015 Kamiodanaka, Nakahara-ku, Kawasaki City, Kanagawa Prefecture Fujitsu Limited

Claims (1)

(57) [Claims] 1. A locking structure for a small terminal device in which an interpolating member (2) having a shape for interpolating a part of the device body (1) is releasably locked to the device body (1), and has a substantially flat plate shape. Locking claw (8) protruding from one end of the member
And the push button portion (9) has the lock claw portion (8) on the other end side.
A locking member (7) integrally formed with an urging portion (10) elastically deforming in the protruding direction of the device, the urging portion (10) is in contact with the device body (1), and the locking claw is The device body (1) is provided so as to slightly slide in the protruding direction of the portion (8), and the lock member (7) is provided with the urging force of the urging portion (10) when the interpolation member (2) is attached. The pawl engaging portion (1) that is formed so as to be restored after being slightly pushed down against the lock and is engaged with the lock pawl portion (8).
3) is provided on the interpolating member (2), and the push button portion (9) of the lock member (7) is pushed to engage the lock claw portion (8) with the claw engaging portion (13). The lock structure for a small terminal device, wherein the interpolating member (2) can be detached from the device body (1) by releasing the lock.